Ore-concentrating table.



H. D. MGLEOD. ORE GONCENTRATING TABLE.

APPLICATION FILED MAY 16, 1910.

' Patented Sept. 8, 1914.

2 SHEETSSHBET 11 H: D MGLEOD- ORE GONUENTRATING TABLE. APPLICATION FILEDMAY 16, 1910.

Patented. Sept. 8, 1914.-

2 SHEETS-SHEET 2.

far."

Jil /Y5 mote from the endof the same upon which material,

Ore-Concentrating. Tables, of which the fol reference being had to he rsharp reverse size, are tons recrushed.

described my separating device as used in connection with aconcentrating table, for

ration of diii erentlysized materials before such materials are;delivered to the concen- U FE ARZG llCCoLiOD, D1 CLEVELAND HEIGHTS,OHIO.

ATING TABLE.

Lililllfilfi Specification of .Lctters Patent.

.ioetion filed 38, 1510. Serial No. 561,602.

Patented gept, 8i,

To all whom it may concern: 7

Be it known that l, iilownsn life-Leon, a citizen of the United rStates,residing at Cleveland Heights, in the county of Guyahoga and State ofOhio, have, invented a certain new and useful Improvement in lowing is afull, clear, and exact description, accompanying drawings.-

My invention relates to a separating device and more particularly tosuch a device wherein a separating platform or table is moved with avibrating motion having a movement in a direction to shift the heavierand coarser material 'toward the end of the platform which is reto beclassified, is introduced. Such a device has been successfullyused inseparating water from granules which are to be smelted, and it is alsouseful to classify material, portions of which aroto be sent tofthestamp mill or which, because of large l'n-the present instance I haveshown and preliminary sepathe purpose of securing a tratingtable,moreover, to deliver the different portions of the material, thusclassified', to those positions on the concentrating table, where theycan be most efliciently and effectively denuded of their values due totheir deposition, subsequent action, and efiect upon each other. p

' With the foregoing general ob ects in view, the invention may bedefined furtheraiid also generally, as consisting of the coinbinationsof elements embodied in the claims hereto annexed and illustrated in oneemhereof, wherein- Figure 1 represents a plan view of a concentratingtable constructed in accordance with my invention; l i 2- represents aview, partly in side elevation and partly in sec tion, of the tableshown in the preceding figure; Fig. 3 represents a rear elevation of thetable shown in the preceding figures; and Fig. 4 an enlarged sectiondetail illustrating the connection between the upper and the lowcr tablewhereby said tables are moved in reverse directions.

coarser materials. The

and beneath the slimes,

rests. This cross bar end or tail of the classifying table 1 which isThe invention disclosed generally, a main table or deck havingcombinedtherewith a superposed prelirninary smaller table or classifying device,by means of which the coarser or larger materials fed onto theclassifying device or table, may be largely separated from the finermaterials an watery slimes, and delivered onto the head of the maintable; the watery slinies or fine particles being delivered to the maintable in advance position with relation to the material fed to the uppertable or classifying device is thus treated by devices acting in seriesand the coarser materials and sends on the main table beneath will, bythe vibration imparted thereto by the head motionbe deposited so as totravel from the head of the table across "collecting therefrom whateverfine'or floating values may be therein and carrying such values byent'rappingthem ainong'such coarse grains to thedischarge end of thetable, and thus effect their recovery.

Describing the parts shown herein by reference characters, 1 designatesthe classifying device, b or preliminarily classifying the materialsupplied'therefroin to the main table. This device, us shown, is a deckor tableof flat surface which lies substantially in a single plane,which is inclined with respect to the horizontal. This table isconsiderably smaller than the main deck or table therebeneath and issupported so that it occupies a position immediately above the depressedhead end of-the main table. It is preferably supported above the mainhorizontal vibration therefrom, but, by the construction to bedescribed, is vibrated so that the sharp reverse is in a direction thereverse of that of the latter table. As a means for supporting theclassifier, 1 provide, in this case, a cross bar 3 which is supported atthe upper ends of a pair of flat springs 4, the lower ends of thesprings being supported from any suitable portion of the foundations orfloor on which table 3 is shown as connected to the head 6 of theclassifying table 1, by means of bolts 7 extending through the bar andthrough the bomb The opposite is supported above the table 2 through alever S, pivoted intcrn'iediule of to a bracket 9 as shown at ll). Thislever which is used for rou 'hing out table receiving ils ends hereincomprises provided with a series of notches ll at its opposite ends,each series of notches being adapted to receive projections "l2 and 13carried .res,r ectively by a connecting member ll. secured to the uppertable and a connecting member 15 secured to the lower or main table. Themembers 14 and 15 may be made of strap iron.

The springs i, which are connected to the head of the table 1, and thesprings (to be described) which are connected to the main table,servc'to keep the projections 12 and 13 firmly in place within theirrespective notches, the notches ali'ording an adjustable connectionbetween the tables and the lever 8. A suitable feed hopper 16 issupported from the head 6 of the table 1, and said table is providedwith a series of riil'les 17 extending continuously from the head of thetable to the tail.

lhe table 2 is provided with ritl les 19, shown as extending the fulllength thereof, the head of the table being inclined, as shown at 20.The main table 51 supported by two longitudinal series of legs, each ofwhich is pivotally connected at its upper end to the bottom oi? thetable, as shown at 22. The legs which support the discharge side of thetable have their lower ends piv otally supported in cups 23 carried bythe horizontally extending arms 24: oil a series of hell crank levers.The vertical arms 2-3 of the lovers are connected to a common linlr 26.This link may be adjusted to vary the inclination of the table 53,through its bell crank connections with the legs 21, by means of a bolt27 extending through a suitable plate 28 and having on its end a nut 29provided with arms 30, by means of which it may be rotated. Each leg 21is itself adjustable, comprising two sections connected by a turn-buckle2!. Suitable transverse braces 31 may be employed to prevent the rackingof the legs 21.

lit the head oi the main. table is pro v idcd the head motion 32, whichmay be of any approved construction, and which is shown as connected tothe main table by means of a pair of straps 33, each having its rear endionncoted to a bolt 34: between a pair or adjusting nuts 35 thereon,said bolts in turn being connected to a cross bar 36 projecting from thebottom of the main table. The straps 823 are connected at their frontends to a nut 2-37 which is mounted upon a bolt 38, the bolt beingsupported in a frame 89, the lower end of which is pivotally supportedat 40, the iraine being connected to the head motion 32-. A spring" llconnects the lower end of a rod to a stationary part oi the bed, theupper end of the rod bciitg connected to the table 2. The spring; tendsto maintain the table 2 at thoi'car end of its path ol vibration, and,together with the spring -l, to maintain the projections 12 and 13 inengagement with the notches in the lever B.

In operation, the table 2 is operated by the head motion and this motiontransmitted, tbou h in the reverse direction, by the lever 8 to thetable 1. lilaterial which is fed onto the table 1 is preliminarilyclassified and discharged onto the head of the main table, adjacent tothe ieed'side thereof, the slimes passing over the rear edge 1 oi saidtable and the granular material passing; over the tail 1* of said table.Under the vibration imparted to the main table, the granular materialfollows the di rection of the arrows A and the slimy water travels inthe direction of the arrows B. The sands and heavier material travelacross and beneath the SllillQS and slimy water and trap therefrompractically all of the values which would otherwise escape. Theprovision of the riflles on the main deck or table 2 maintains theStratification, so that when values of different specific gravity occurthey may be caught in different receptacles. The classification orseparating table need not necessarily lie-located in close proximity tothe concentrating table but may be at a point quite remote therefrom, ifdesired, as, for instance, in the upperpart of the building in which theconcentrating apparatus is located and theclassified'matori-ailfrom-*thesieparating-device will be delivered to the concentrator bysuitable conveyors. However, such conveyors will be so arranged as todeliver classified material in. the same relative position as would bethe case when the two devices are arranged, as here shown and described.

In using the terms separating platform, sepa ating table, etc, l usethem in their broad meaning and include all such devices as willaccomplish their function.

Having thus described my invention, what I claim is 1. The combination,with an orc classifying table, of a feeder therefor comprising a plane.table mounted above and independcntly of said main table and providedwith longitudinal Iililes, the riiiies of said tables beingsubstantially parallel and said tables being inclined transversely oftheir riiiies in opposite directions, the lower side of said feedertable being abovcand adjacent to the higher side o't said main table,means for imparting to said main table a horizontal (Iiiiercntialvibration in the direction of its riilles, and means for imparting tosaid feeder table a horizontal, diilcrential vibration in the directionof its riilies, such ditfcrcntials being in opposite directions.

2.]lhc combination, with an orc classifying table having a generaldiagonal inclination ant, means for reciprocating the same in directionoblique to such line of inclination, or feeder therefor comprising aseclilti end table supported thereab'ove and having a general. diagonalinclination opposite to that or" the main table, means for imparting tosaid feeder table a horizontal differential vibration opposite to andindependent of the motion of said main table, the direction of movementof said main table and feeder table being substantially parallel, meansfor delivering mixed granular and slimy niaterial to said feeder table,and means for adjusting the angle ofsaid feeder table inde- 'pendentlyof said main table whereby the coarser and more granular material willbe delivered to said main table adjacent its head end and the slimesadjacent one of the sides thereof.

The combination, with an ore-classifying table having longitudinalriilles and means for imparting to said table diiferential, horizontalvibration in the direction of said riilles of a feeder thereforcomprising a plane table supported above said main table and also havinglongitudinal riilies substantially parallel to those of the main table,means for imparting thereto a hori Zontal, differential vibration in adirection parallel to its rii'lles and opposite to the vibration of saidmain table, and means for supplying granular ore and Water to that partof the feeder table which is nearest the discharge side ofsaid maintable, the direction of the diflerential of feeder table vibrationsbeing such as to discharge concentrate opposite to that of the maintable, means for delivering mixed granular and pulveized materialtogether with water to the lower end of said feeder table, and means forimparting to said feeder table a reciprocation independent of andopposite to the reciprocation of said main table, the direction ofmotion of said feeder table being substantially parallel. to that of themain table, and said feeder table having longitudinal rifiiessubstantially parallel to the direction of its motion, whereby the-moregranular of said material Will be delivered to said main table at theportion farthest removed from the discharge end for said. granularmaterial and said Watery material may be delivered to said main table ata point farthest removed 'rom the dischargeportion for such material.

5. The combination, with an ore classifying table having a generaldiagonal inclinatlon and means tor reciprocating" the same in adirection oblique to the line of inclination, or a feeder thereforcomprising a secga-tions or riiliee substantially parallel with thedirection of movement of said main table, said feeder table beingdisposed over the lower end and higher side of the main table and havingits discharging end pro" sented toward the lower end of said main table,means for delivering mixed material together with Water to the lover endoi? said Ieeder table, and means for imparting to said feeder table adifferential reciprocatory movement substantially parallel to thedirection of its corrugations or riilies, such re- 'c'iprocatorymovement being opposite to and independent of that of the main table,whereby the coarser and heavier material will be delivered to the maintable at the portion farthest removed from the discharge end. forconcentrates, and the finer and lighter material at the portion farthestfrom the tailings discharge.

. 6. The combination, with an ore classifying table having longitudinalcorrugations and supported in an inclined position, the line of greatestinclination making an oblique angle with the direction of said.corrugations, and means for reciprocating said. table in a directionsubstantially parallel with said riilles, of a} feeder thereforcomprising a second table supported thcreabove and having an inclinationopposite to that of said main table, said-feeder table having dischargeend above the end of the main table opposite to its discharge end and adis charge side above the side of the main table opposite to itsdischarge side, said feeder table having longitudinal corrugations orriliies intersecting its discharge portion, means for reciprocating saidfeeder table independently of said main table in a directionsubstantially parallel to its 'riifles or corrugations, and means fordelivering "ore to said feeder table at a point removed from itsdischarge portion.

7. The combination, With a differentially reciprocating table adapted tocause heavy material to travel longitudinally and lighter material totravel transversely, of a differentially reciprocable plane tableoverlying said first table and having unobstructed discharge sides forlighter and heavier material, the discharge side, for heavier materialbeing disposed above the opposite end of said first table from itsdischarge end for such mate rial and the discharge side of the secondtable for lighter material being" disposed above the opposite side ofthe main table from its discharge side fer-such lighter me- I terial,said second table being inclined down- Werdly in the direction of itsdischarge side for lighter materiah meet is for imparting to said secondtable a dinerentiel reciprocation enpoeite to and independent of that ofthe main table, whereby material of whatever nature on said second tablewill be caused. to prowess in the opposite direction from that ei'bli'llllzll nmterial on said main til lie.

8. The eolnbimtioin with an ore classify ing table mwing a slope in. twodirectiens and rillles running in one of these directions, 0t n, feedertable nioimted eeeve said first table also lievin slope in tv-ro direeti one the "r etien o. lope oi said feeder table being in each o esiteto the direeh i em tion of slope of said first table, and said teedertable also having riflles running substantially parallel to the riillesof said first table, said feeder table being located substan tially everthe receiving side of said first HO NARD D. MCLEOD.

ll itnesees BRENNAN 8. West A. J. ilensoN.

